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UNIX/LINUX Command – cat

Last updated Apr 25, 2021

NAME

cat—Concatenate files and print on the standard output

SYNOPSIS

cat [–benstuvAET] [—number] [—number-nonblank] [—squeeze-blank] [—show-nonprinting] [—show-ends] [—show-tabs] [—show-all] [—help] [—version] [file…]

DESCRIPTION

This manual page documents the GNU version of cat. cat writes the contents of each given file, or the standard input if none are given or when a file named – is given, to the standard output.

OPTIONS

Options Description
–b, —number-nonblank Number all nonblank output lines, starting with 1.
-e Equivalent to –vE.
–n, —number Number all output lines, starting with 1.
–s, —squeeze-blank Replace multiple adjacent blank lines with a single blank line.
–t Equivalent to –vT.
–u Ignored; for UNIX compatibility.
–v, —show-nonprinting Display control characters except for LFD and TAB using ˆ notation and precede characters that have the high bit set with M-.
–A, —show-all Equivalent to –vET.
–E, —show-ends Display a $ after the end of each line.
–T, —show-tabs Display tab characters as ˆI.
—help Print a usage message and exit with a nonzero status.
—version Print version information on standard output then exit.

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